Back in the day, we self-learned programming by buying a box of blank punch cards at the campus bookstore, waiting in line to use the keypunch machine, and then

Back in the day, we self-learned programming by buying a box of blank punch cards at the campus bookstore, waiting in line to use the keypunch machine, and then waiting in front of the printer bins for the line printer guy to roll up your output like a newspaper and deliver it. There was lots of down time for reading the manuals very carefully.